Freeflows

Average Pre Final Test Score

In Heidi's history class, the only grades that count toward the semester average are the $ 6 $ tests she has already taken and the upcoming final exam. The final exam counts as two tests. Heidi has determined that if she earns $ 99 $ points on the final she will have exactly a $ 90 $-point average for the semester. On average, how many points has Heidi scored on each test prior to the final exam?

1
2
3
+
4
5
6
-
7
8
9
$\frac{a}{b}$
.
0
=
%

$a^n$
$a^{\circ}$
$a_n$
$\sqrt{}$
$\sqrt[n]{}$
$\pi$
$\ln{}$
$\log$
$\theta$
$\sin{}$
$\cos{}$
$\tan{}$

$($
$)$
$[$
$]$
$\cap$
$\cup$
$,$
$\infty$

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